Security update for libX11

Announcement ID: SUSE-SU-2018:2955-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2018-14598 ( SUSE ): 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • CVE-2018-14598 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2018-14599 ( SUSE ): 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • CVE-2018-14599 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-14599 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-14600 ( SUSE ): 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • CVE-2018-14600 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • Basesystem Module 15
  • SUSE Linux Enterprise Desktop 15
  • SUSE Linux Enterprise High Performance Computing 15
  • SUSE Linux Enterprise Server 15
  • SUSE Linux Enterprise Server for SAP Applications 15

An update that solves three vulnerabilities can now be installed.

Description:

This update for libX11 fixes the following security issues:

  • CVE-2018-14599: The function XListExtensions was vulnerable to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other impact (bsc#1102062)
  • CVE-2018-14600: The function XListExtensions interpreted a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution (bsc#1102068)
  • CVE-2018-14598: A malicious server could have sent a reply in which the first string overflows, causing a variable to be set to NULL that will be freed later on, leading to DoS (segmentation fault) (bsc#1102073)

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • Basesystem Module 15
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-2082=1

Package List:

  • Basesystem Module 15 (aarch64 ppc64le s390x x86_64)
    • libX11-debugsource-1.6.5-3.3.1
    • libX11-xcb1-1.6.5-3.3.1
    • libX11-xcb1-debuginfo-1.6.5-3.3.1
    • libX11-6-1.6.5-3.3.1
    • libX11-devel-1.6.5-3.3.1
    • libX11-6-debuginfo-1.6.5-3.3.1
  • Basesystem Module 15 (noarch)
    • libX11-data-1.6.5-3.3.1
  • Basesystem Module 15 (x86_64)
    • libX11-xcb1-32bit-1.6.5-3.3.1
    • libX11-xcb1-32bit-debuginfo-1.6.5-3.3.1
    • libX11-6-32bit-debuginfo-1.6.5-3.3.1
    • libX11-6-32bit-1.6.5-3.3.1

References: